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Stream cipher based on pseudorandom number generation with optical affine transformation
2000
Applied Optics
We propose a new, to our knowledge, stream cipher technique for two-dimensional ͑2-D͒ image data that can be implemented by iterative optical transformation. The stream cipher uses a pseudorandom number generator ͑PRNG͒ to generate a pseudorandom bit sequence. The proposed method for the PRNG is composed of the iterative operation of 2-D affine transformation achieved by optical components and by modulo-n addition of the transformed images. We expect efficient execution of the method by optical
doi:10.1364/ao.39.002340
pmid:18345143
fatcat:rzxbveyp7nct3atv5exqidmtsi